SUPPORT OF MULTIUSER DETECTION IN DOWNLINK

摘要

PROBLEM TO BE SOLVED: To provide user equipment capable of determining a channelization code in an active state in user equipment in a time division duplex communication system using spread spectrum CDMA.

SOLUTION: A wireless time division duplex communication system using code division multiple access has a base station and user equipment. The system communicates signals using communication signal bursts each having a unique channelization code and a midamble code. For each communication signal burst to be transmitted in a time slot from the base station, the midamble code mapped to that burst's channelization code is determined. Each burst has the determined midamble code for its channelization code. The user equipment receives the bursts and determines each received midamble code. The user equipment determines the channelization codes of the transmitted communication signal bursts based on in part a result of the determining of each received midamble code.

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